EP0397000A3 - Verfahren zur Reduktion von Hypohalogeniten in alkalischen Prozesslösungen - Google Patents

Verfahren zur Reduktion von Hypohalogeniten in alkalischen Prozesslösungen Download PDF

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Publication number
EP0397000A3
EP0397000A3 EP19900108203 EP90108203A EP0397000A3 EP 0397000 A3 EP0397000 A3 EP 0397000A3 EP 19900108203 EP19900108203 EP 19900108203 EP 90108203 A EP90108203 A EP 90108203A EP 0397000 A3 EP0397000 A3 EP 0397000A3
Authority
EP
European Patent Office
Prior art keywords
alkaline
hypohalogenites
reducing
solutions
reduction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19900108203
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English (en)
French (fr)
Other versions
EP0397000B1 (de
EP0397000A2 (de
Inventor
Wolfgang Dr. Kochanek
Bernd Dr. Leutner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Publication of EP0397000A2 publication Critical patent/EP0397000A2/de
Publication of EP0397000A3 publication Critical patent/EP0397000A3/de
Application granted granted Critical
Publication of EP0397000B1 publication Critical patent/EP0397000B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/68—Halogens or halogen compounds

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Zur Reduktion von Hypohalogeniten in alkalischen Prozeßlösungen gibt man potentiometrisch geregelt Alkalieisencarbonylat zu. Die Reduktion wird bei pH-Werten oberhalb von 9 durchgeführt. Die Zugabe von Alkalieisen­ carbonylat wird unterbrochen, sobald sich das Redoxpotential um mindestens 20 mV gegenüber dem Redoxpotential der Ausgangslösung vermindert hat.
EP90108203A 1989-05-12 1990-04-30 Verfahren zur Reduktion von Hypohalogeniten in alkalischen Prozesslösungen Expired - Lifetime EP0397000B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3915604 1989-05-12
DE3915604A DE3915604A1 (de) 1989-05-12 1989-05-12 Verfahren zur reduktion von hypohalogeniten in alkalischen prozessloesungen

Publications (3)

Publication Number Publication Date
EP0397000A2 EP0397000A2 (de) 1990-11-14
EP0397000A3 true EP0397000A3 (de) 1991-10-23
EP0397000B1 EP0397000B1 (de) 1993-10-13

Family

ID=6380559

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90108203A Expired - Lifetime EP0397000B1 (de) 1989-05-12 1990-04-30 Verfahren zur Reduktion von Hypohalogeniten in alkalischen Prozesslösungen

Country Status (2)

Country Link
EP (1) EP0397000B1 (de)
DE (2) DE3915604A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4101333A1 (de) * 1991-01-18 1992-07-23 Licentia Gmbh Verfahren zum verringern der schaedlichkeit einer alkalischen loesung
FR2813205B1 (fr) * 2000-08-24 2003-07-25 Picosil Procede d'epuration des effluents gazeux fluores

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849498A1 (de) * 1978-11-15 1980-05-29 Metallgesellschaft Ag Verfahren zum auswaschen von chlor aus gasen
DE3603511A1 (de) * 1986-02-05 1987-08-06 Standard Elektrik Lorenz Ag Verfahren und vorrichtung zur entfernung von staub- und gasfoermigen schadstoffen aus abgasen, insbesondere abgasen bei der lichtwellenleiter-vorformherstellung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849498A1 (de) * 1978-11-15 1980-05-29 Metallgesellschaft Ag Verfahren zum auswaschen von chlor aus gasen
DE3603511A1 (de) * 1986-02-05 1987-08-06 Standard Elektrik Lorenz Ag Verfahren und vorrichtung zur entfernung von staub- und gasfoermigen schadstoffen aus abgasen, insbesondere abgasen bei der lichtwellenleiter-vorformherstellung

Also Published As

Publication number Publication date
EP0397000B1 (de) 1993-10-13
DE3915604A1 (de) 1990-11-15
EP0397000A2 (de) 1990-11-14
DE59003050D1 (de) 1993-11-18

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